163051065 has 36 divisors (see below), whose sum is σ = 298309284. Its totient is φ = 82375488.

The previous prime is 163051061. The next prime is 163051069. The reversal of 163051065 is 560150361.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (163051061) and next prime (163051069).

It can be written as a sum of positive squares in 2 ways, for example, as 56610576 + 106440489 = 7524^2 + 10317^2 .

It is not a de Polignac number, because 163051065 - 2² = 163051061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163051061) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11227 + ... + 21263.

It is an arithmetic number, because the mean of its divisors is an integer number (8286369).

Almost surely, 2^163051065 is an apocalyptic number.

163051065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163051065 is a deficient number, since it is larger than the sum of its proper divisors (135258219).

163051065 is a wasteful number, since it uses less digits than its factorization.

163051065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10086 (or 10064 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 163051065 is about 12769.1450379420. The cubic root of 163051065 is about 546.3125952213.

The spelling of 163051065 in words is "one hundred sixty-three million, fifty-one thousand, sixty-five".